rafat / ctsa

A Univariate Time Series Analysis and ARIMA Modeling Package in ANSI C. Updated with SARIMAX and Auto ARIMA.
https://code.google.com/p/ctsa/
Other
57 stars 25 forks source link

Undeterministic behaviour of some time series #2

Open flesicek opened 3 years ago

flesicek commented 3 years ago

Hi,

First of all, thanks a lot great sarima package and your effort!.

We are testing ctsa and for some combination of parameters and time series, the algorithm will behave nondeterministic manner. Meaning that for the same combination, sometimes CTSA will return different results.

Note:

Time series: [40,70,0,50,30,50,0,30,30,0,20,26,50,0,0,0,0,0]

Configuration of SARIMA

method: 0
optimizer: 6
p: 1
d: 1
q: 2
s: 11
P: 1
D: 1
Q: 1